Rules for Prehistoric Hair Care: 1) Never cut your hair. 2) Never comb your hair. 3) Wash your hair only when you can't help getting completely wet. The problem with that is that you don't live in prehistoric times--you live in the 21st century, and personal hygiene is considered a bit more important now. So if you want that authentic caveman look minus the greasy, smelly hair, get this Adult Wild Caveman Wig. You'll look just like you've faithfully followed those prehistoric instructions. And then you can take it off and go to work or to class the next day without having to schedule an appointment with your barber!